Right-sized downspouts, oversized 3x4 for heavy Bellingham rain, plus extensions, underground drain lines, and splash management that carry water away from the foundation instead of dumping it at the wall.
Gutters only do half the job. If your downspouts dump water right at the wall, all that rain runs straight into the foundation and the crawl space. On the flat lots near the bay and the clay soil out in Barkley and Sudden Valley, that is exactly how basements flood and foundations move. We get the water out to where it belongs.
Depending on the job, that means swapping undersized downspouts for oversized 3x4, adding extensions and splash blocks, or trenching a below-grade drain line that carries the water well away from the house. Simple extension work is a half day. A buried drain run across the yard can take a day or two. We size it to how much water your roof actually sheds.
What it actually costs.
Downspouts & drainage $250 – $1,800
ScopeNew downspouts vs full below-grade drainage
RunsNumber and length of downspout and drain runs
TrenchingWhether we dig in a buried drain line
SizeStandard 2x3 vs oversized 3x4 downspouts
DischargeWhere the water can safely daylight or tie in
How we handle drainage.
Find where the water goes wrong
We look at where your downspouts dump now and where water pools against the house.
Right-size the downspouts
We swap undersized downspouts for oversized 3x4 where the roof needs the extra capacity.
Carry it away from the foundation
We add extensions, splash management, or a below-grade drain line that moves water well clear of the wall.
Flush-test the run
We run water through the whole path and confirm it drains away from the house, not toward it.
Why hire a gutter crew.
Oversized 3x4 downspouts for heavy PNW rain
Extensions and splash management to clear the foundation
Below-grade drain lines that daylight well away from the house
Sized to how much water your roof actually sheds
Whole drainage path water-tested before we leave
Frequently asked questions.
How much does downspout and drainage work cost in Bellingham?
It ranges from about $250 for simple downspout and extension work up to $1,800 when we trench a below-grade drain line across the yard. The price depends on how many runs, the length, whether we dig in a buried line, and where the water can safely discharge. We give you a line-item quote after we see how the water moves on your lot.
Why are my downspouts flooding my foundation?
Because the water is being dropped right at the wall instead of carried away. On flat lots near the bay and clay soil in Barkley and Sudden Valley, water that dumps at the foundation soaks straight in and ends up in the crawl space. Extensions or a buried drain line that moves the water ten or more feet out usually fixes it.
Do I need below-grade drain lines or just extensions?
It depends on your lot. If the ground slopes away from the house, simple extensions and splash blocks often do the trick. On flat lots, or where the discharge would just pool, a below-grade drain line that carries water to a safe daylight point is the real fix. We tell you which one your yard actually needs.
Ready for a free downspout and drainage quote?
Tell us about your project and we'll reply within 15 minutes during business hours.